#region license
/*
 * Copyright (C) 2007 CchenSoft.com
 * 
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License 2.1 or later, as
 * published by the Free Software Foundation. See the included License.txt
 * or http://www.gnu.org/copyleft/lesser.html for details.
 * 
 * Author: Billy Zhang
 */
#endregion

using System.Collections;

namespace CchenSoft.Workflow.Util
{

    /**
     * Sets the transient variable "caller" to the current user executing an action.
     */
    public class Caller : IFunctionProvider
    {
        //~ Methods ////////////////////////////////////////////////////////////////

        public void Execute(IDictionary transientVars, IDictionary args)
        {
            IWorkflowContext context = (IWorkflowContext)transientVars["context"];
            transientVars["caller"] = context.Caller;
        }
    }
}
